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Robert Moses State Park Surf Forecast
/ Long Island NY (34 breaks) / New York (44 breaks) /
Robert Moses State Park surfForecast / Long Island NY / USA
12 Day Weather and Surf, issued 7 pm Thursday 17 Apr 2025 EDT
Best Forecast Surf Conditions for Robert Moses State Park this week:
The surf forecast for Robert Moses State Park over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Apr 20) at 2AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 0.1m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Robert Moses State Park in the next 12 days are 1.8m 7s and forecast to arrive on Saturday (Apr 19) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Apr 20) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 20th Apr) | 5ft (1.6m) 7s |
| Best Surf | 2AM (Sun 20th Apr) | 5ft (1.6m) 7s |
| Most Powerful | 8PM (Sat 19th Apr) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Robert Moses State Park over the next 12 days.
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tue 29 | |||||||||||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 7 | 6 | 5 | 6 | 7 | 7 | 7 | 8 | 7 | 7 | 6 | 6 | 5 | 6 | 6 | 6 | 9 | 6 | 8 | 8 | 4 | 6 | 6 | 9 | 5 | 6 | 7 | 7 | 8 | 8 | 7 | 8 | 8 | 8 | 5 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||
| Energy (?) | 3 | 22 | 84 | 215 | 285 | 346 | 279 | 159 | 87 | 43 | 11 | 6 | 78 | 78 | 54 | 32 | 24 | 28 | 17 | 15 | 31 | 94 | 62 | 49 | 67 | 206 | 225 | 259 | 244 | 151 | 104 | 107 | 79 | 60 | 55 | 154 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- on | cross- on | cross- on | cross | cross | cross- off | off | off | cross | cross- on | on | cross- on | cross- off | cross | cross- off | cross- off | cross | cross- on | cross- on | on | cross- on | cross | glass | cross | cross | cross- on | cross | cross | cross- on | cross- on | cross- on | cross- on | cross | cross- off | cross- off |
High Tide / height (m) | 10:49PM 1.29 | 11:27AM 1.03 | 11:35PM 1.26 | 12:18PM 1.01 | 12:30AM 1.24 | 1:15PM 1.02 | 1:29AM 1.24 | 2:14PM 1.07 | 2:32AM 1.25 | 3:17PM 1.15 | 3:37AM 1.29 | 4:19PM 1.27 | 4:41AM 1.34 | 5:16PM 1.41 | 5:39AM 1.40 | 6:08PM 1.56 | 6:34AM 1.44 | 6:57PM 1.67 | 7:24AM 1.46 | 7:44PM 1.73 | 8:15AM 1.45 | 8:32PM 1.74 | 9:07AM 1.41 | |||||||||||||
Low Tide / height (m) | 5:16AM 0.18 | 4:58PM 0.29 | 6:02AM 0.23 | 5:43PM 0.33 | 7:03AM 0.26 | 6:54PM 0.36 | 8:14AM 0.24 | 8:25PM 0.33 | 9:16AM 0.17 | 9:37PM 0.25 | 10:10AM 0.08 | 10:38PM 0.13 | 11:00AM -0.02 | 11:34PM 0.01 | 11:49AM -0.09 | 12:28AM -0.09 | 12:38PM -0.15 | 1:22AM -0.17 | 1:27PM -0.17 | 2:15AM -0.22 | 2:17PM -0.16 | 3:06AM -0.22 | 3:06PM -0.12 | |||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | Friday 25 | Saturday 26 | Sunday 27 | Monday 28 | Tue 29 | |||||||||||||||||||||||||
| Sunrise | - | 6:09 | - | - | 6:09 | - | - | 6:07 | - | - | 6:05 | - | - | 6:03 | - | - | 6:03 | - | - | 6:01 | - | - | 6:00 | - | - | 5:58 | - | - | 5:56 | - | - | 5:56 | - | - | 5:54 | - |
| Sunset | - | - | 7:35 | - | - | 7:36 | - | - | 7:37 | - | - | 7:37 | - | - | 7:38 | - | - | 7:39 | - | - | 7:40 | - | - | 7:42 | - | - | 7:43 | - | - | 7:44 | - | - | 7:45 | - | - | 7:45 |
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Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 2 | - | - | - | - | - | - | - | - | 15 | 1 | 1 | - | - | - | - | - | - | - | - | 2 | 5 | 4 | - |
| Temp. °C | 14 | 12 | 12 | 13 | 18 | 24 | 23 | 14 | 18 | 16 | 9 | 10 | 11 | 15 | 20 | 20 | 9 | 18 | 16 | 12 | 13 | 15 | 16 | 18 | 18 | 12 | 14 | 14 | 11 | 11 | 10 | 9 | 10 | 10 | 15 | 21 |
| Feels °C (?) | 10 | 6 | 4 | 8 | 13 | 20 | 20 | 9 | 14 | 12 | 3 | 5 | 7 | 11 | 13 | 13 | 4 | 14 | 11 | 8 | 8 | 13 | 15 | 19 | 18 | 10 | 11 | 10 | 5 | 5 | 5 | 3 | 5 | 6 | 11 | 15 |
Short Range Forecast: Mostly dry. Warm (max 24°C on Sat afternoon, min 10°C on Thu night). Winds increasing (calm on Thu night, fresh winds from the SSW by Fri afternoon). | Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Mon night. Warm (max 20°C on Tue afternoon, min 7°C on Wed morning). Winds increasing (light winds from the NNE on Sun night, fresh winds from the WSW by Tue afternoon). | Days 6-9 Weather Summary Moderate rain (total 17mm), heaviest on Thu night. Very mild (max 18°C on Fri afternoon, min 11°C on Thu morning). Wind will be generally light. | Long Range Forecast: Moderate rain (total 11mm), heaviest on Mon night. Warm (max 21°C on Tue afternoon, min 9°C on Mon morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Robert Moses State Park surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Robert Moses State Park Surf forecast
The above surf forecast table for Robert Moses State Park provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Robert Moses State Park can be found by selecting the local surf guide option on the grey menu. Our Robert Moses State Park surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Robert Moses State Park) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Robert Moses State Park may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Robert Moses State Park is 10 km (6 miles) from West Islip. If you plan a vacation in Long Island New York, look for hotels and other accommodation in West Islip. West Islip has rooms for a wide range of budgets as well as car hire and transport links.
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